Journal of Comprehensible Results

Kennedy A.J., Bruce A.M., Gineste C., Ballard T.E., Olekhnovich I.N., Macdonald T.L. & Hoffman P.S. (July 2016)
Synthesis and Antimicrobial Evaluation of Amixicile-Based Inhibitors of the Pyruvate-Ferredoxin Oxidoreductases of Anaerobic Bacteria and Epsilonproteobacteria
Antimicrobial Agents and Chemotherapy 60:3980 - 3987

(Translated by Nasita Islam)

Significance

Bacteria can be divided in two categories: aerobic and anaerobic. The majority of aerobic bacteria have an anti-inflammatory response while the majority of anaerobic trigger a pro-inflammatory response. The biofilm in the oral cavity illustrates this distinction.

Bacteria can accumulate in the oral cavity through the presence of biofilms. These biofilms consist of both aerobic and anaerobic bacteria. An accumulation of anaerobic bacteria, such as Porphyromonas gingivalis, cause the gum to become irritated and can lead to harmful oral diseases like periodontitis. These biofilms consist of both aerobic and anaerobic bacteria; each have a slightly different metabolic pathway. A drug named amixicile targets the metabolic process in anaerobic bacteria, particularly pyruvate oxidation. Specifically, amixicile targets pyruvate ferredoxin oxidoreductase (PFOR).

It is of interest to examine how amixicile binds to and interacts with PFOR and how pyruvate is blocked from being converted further. Kennedy et al. (2016) utilized a method to virtually examine the interaction of amixicile and PFOR and virtually manipulate and improve amixicile’s structure for more efficient binding.

Contents



Projected amixicile binding in PFOR active site. From Kennedy et al 2016. p. 3982.